Quote - As for video drivers, I reverted back to older ones on ATI. My ATI cards isn't the newest one, it's one of the 4300 series.

For Poser 7 and the first Poser Pro there were these recommendations in the ReadMe file, to change a line in the Poser.ini

Added preference for controlling hardware shading during tracking, please change PREVIEW_OGL_HWSHADING_INTRACKING 1 to PREVIEW_OGL_HWSHADING_INTRACKING 0
to prevent lag in camera adjustment on certain NVIDIA chipsets; NVIDIA OpenGL Hardware shading only.

Windows owners with certain ATI graphics cards may notice that Poser takes a long
time to highlight the body part or prop that is moused over (due to the long delay it may appear that items are not highlighting at all.) This complicates the job of selecting parts to pose; the situation can be greatly improved by editing the Poser.ini file to set the PREVIEW_OGL_OBJECT_BBOXPICKING entry to 1 (from the default zero.)